Linux adds a new hard disk to an existing logical volume
In order to make full use of the resources, you want to use the extra hard disk to expand the existing machines, can be used to store the backup files.
Environment:
Operating system, Centos 6.5 x86_64
1. Install the hard disk, the hard disk size is 160G;
Hard disk Information: Previous Linux system, not formatted.
2. Boot, format the hard drive
Found new hard drive is SDB1, volume Group is VolGroup00, logical volume is LogVol00 and LOGVOL01
Remove the logical volume with 2
#lvremove/dev/volgroup00/logvol00#lvremove/dev/volgroup00/logvol01
Remove a volume group
Vgremove VolGroup00
Repartition partitions
#fdisk/dev/sdbcommand (M for help): Dselected partition 1Command (M-help): Ncommand action E extended P Prim ary partition (1-4) ppartition number (1-4): 1First cylinder (1-19457, default 1): Using default value 1Last cylinder, +cyl Inders or +size{k,m,g} (1-19457, default 19457): Using default value 19457Command (M for help): tselected partition 1Hex C Ode (type L to list codes): 8eChanged system type of partition 1 to 8e (Linux LVM) Command (M-help): w# mkfs.ext4/dev/ Sdb1
3. Create a physical volume
# PVCREATE/DEV/SDB1
4. Extended Volume Group
# Vgextend VOLGROUP/DEV/SDB1
5. Extending the logical Volume
Umount/home/lvextend-l +149g/dev/volgroup/lv_homemount/dev/mapper/volgroup-lv_home/home/
6. After the expansion, change the file system size
Resize2fs/dev/volgroup/lv_home
7. New HDD post-information
# pvs pv vg Fmt Attr PSize PFree /dev/sda2 volgroup lvm2 a-- 465.27g 0 /dev/sdb1 VolGroup lvm2 a-- 149.05g 48.00m# vgs VG #PV #LV #SN Attr VSize VFree VolGroup 2 3 0 wz--n- 614.32g 48.00m# lvs lv vg attr lsize pool origin data% Meta% move log cpy%sync convert lv_home volgroup -wi-ao---- 560.39g lv_root Volgroup -wi-ao---- 50.00g lv_swap volgroup -wi-ao---- 3.88g
Linux adds a new hard disk to an existing logical volume